Improvement in winding watches



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CHARLES JACOT, 0F GHAUX-DE-FONDS, SWITZERLAND.

' Letters Patent'No. 71,389, dated November 26, 1867.

IMPROVEMENT IN WINDING WATCHES.

TO ALL WHOM IT MAY CONCERN Be it known that I, CHARLES E. JACOT, a citizen of the United States, now in Chaux-de-Fonds, Switzerland, have invented, made, and applied to use, a certain new.and useful Improvement in Means for Winding and Setting Watches; and I do hereby declare the fdllowing to be a full, clear, andA exact description of the said invention, reference being had to the annexe-d drawing, making part of this specification, wherein* Figure 1 is a view of the watch-plates and winding and setting-,apparatns.

Figure 2 is a view of the front plate ofthe watch with the face removed; and

Figure 3 isa detached view sidewise ofthe gear-carrier plate and gears thereon.

Similar marks of reference denote the same parts.-

In Letters Patent granted September 27, 1864, for my improvement in winding and setting wr tches, the wheels that communicate from the stem to the spring-barrel, and to the hands, are set upon a carrier-plate that is rocked to bring the settingwheels into gear, a pushing-pin from the outside of the case being employed to' eiect this rocking movement. I 5nd, however, thatin use, this pushing-pin sometimes is accidentally'moved, and the hands are misplaced, and besides this, the wh'eels m, in said patent, swinging in the arc cfa circle, come in contact with the wheel 2:,- with a rolling motion as the teeth enter each other; moved, simply by theact of bringing the wheels suddenly into contact. This present invention is an improvement upon the aforesaid patent, and consists in a lever appliedto the winding and settingmechanism, so as to swing the gear-carrier plate 7c. The end of said lever being within the case when shut, is protected from accidental motion. And I locate the wheel that communicates with the hand wheels, so that it moves nearly in the arc oia circle described from the centre of the swinging plate to the rst stationary ,wheel connecting with the hands,'so that the hands themselves will not be moved simply by the act of connecting the setting-mechanism. I apply a spring-click to the wheel of the spring-barrel, said spring-click or pawl being made of one piece of metal, and the spring bent to the shape ofthe edge ofthe upper plate ofthe works, so that the tension upon said spring shall not draw it into a more nearly straight line; thereby the curved hence the hands sometimes are spring-pawl locks as securely as the straight spring-pawls or clicks herctoforevemployed.

In the drawing,-a is the main plate of the Watch; b is the secondary plate or rim, and c is the arbor or upper plate of the watch; e is the spring-barrel wheel; fis the vwheel to the arbor of the minute-hand t is the stem winder; 7L is a bevel-pinion on the stud z', taking the bevel-pinion r on the stem t; 7c is the rocking plate forming the gear-carrier, above which is the wheel Z, connected to the bevel-pinion h, with the wheel n to the wheel e ofthe spring-barrel, all substantially the same as in the aforesaid Letters Patent. Part ofthe arborplate is shown as removed in iig. 1, to show the wheels below it. The wheel m connects with the wheel l, as in aforo said patent, but it has a pinion, 10, above it, with line teeth gearing into the teeth or" the wheel w, and this in turn gears to the vvheelf` By introducing this pinion 10, I am enabled -to make the train of setting-wheels with iiner teeth than before, and hence can set the hands with greater accuracy, and the risk 0f moving the hands by the simple act of connecting or disconnecting the wheels is avoided. Besides this, I place the pinion a; in such a positionl to the pinion 10, that said pinion 10 will draw away without any rolling movement, the centre ofthe wheels l0 and z being about equidistant from the centre ofthe stud z', as illustrated by the red lines. The gear-carrier plate .7c has a stud, 11, passing through the plate a, and l2 is a spring that tends to swing the plate k, so as to keep the gears n e together, andy is a lever on a fulcrum, 13, the shortest end of which lever is against the stud l1, and the longer `end is outside thevedge of the plate a, but within the case of the watch, and stands near the edge of the glass bezel, so as to be easily moved by the nail to swing the plate 7c so as to connect the setting-wheels 10 and w, so that the hands can beset by the stem t. The Wheelf has a pin projecting from its surface, entering a larger hole or elongated slotin a disk orilange, 14, ofr the 'arbor ofthe minutehand, This allows the wheelsfand x to be partially free from the minute-hand arbor, rendering it lesslikely vthat tbc hands will be in any manner influenced by the simple act of moving the wheel 10 into contact with the 'wheel x. The pawl'l is -made of one piece of metal, attached at one end to the plate Z7, and formed at the other end as a hook `to take the teeth of the wheel e, the middle portion being a curved spring lying against the edge I ofthe plate c, so that the 'strain of the spring-barrel shall not injure the curved spring by acting to draw it into a staight line, because it is-supported by the edge of thc plate c. By this construction a long curvedspringpawl can be introduced with the spring and click in one piece, whereas heretofore the click hss 'been separate when a. curved spring has been employed.

What claim, and desire to secure by Letters Patent, is Y 1. The wheel10-, connected with the wheel m, and fitted so as to be moved into gear with the wheel x, in the manner and for the purposes set forth.

2. Thepin on therwheelf, taking loosely into an opening in the ange or disk of the arbor' of the minutehand, for the purposes andas set forth. d

3. lThe lever-y,- and spring 12, applied as set forth, in combination with the Astud 11, and swinging-gear carrier-plate c, substantially as and- 'or the purposes set-forth.

4. The pawl 15, made in'one piece of metal with-its eurved1spring, in combination with the plate c, against the edge of which said curved spring lies, as and for the purposes set forth. 4 In witness whereof I have hereunto set my signature, this thirteenth day o f May, A. 11.1867.

` CEAS. EJACOT.

Witnesses:

D. FER, EMILE WARMBRODT. 

